Ok, let's start.
I'm gonna sort it in 3 categories so I'm not gonna get lost when i describe what i see, ok?
1. How it looks
2. How you use it.
3. Overall summary.
1. The setup is good, very good even, both with shadows and lights where they should be, and with small details like warnings on the bottom, i presume the battery. The ring not only looks like metal, when you see it, you KNOW its metal. For somebody that may be oblivious, but i like details like that. And when you take it in hand you know your holding a grenade, not a pack of pills
Still, it don't look handy, dunno if would lay in hand as good and that is no small thing. On the other side, compact style is what we call handy nowadays so i'm not gonna set my personal point on whats handy or whats not. The one thing that's bother me is a pin. EMP grenades work with electricity, so why make the trigger with a pin? A button not better there? More over, even if the pin is connected to the "fuse" inside, the lever don't look like connected to anything except the outer shell. Based on how a Electro-magnetic pulse works, a safe pin is acceptable, but a lever is a little too much.
2. By the concept it looks like that - you pul the pin, you let go of the lever and this small boy gonna deliver a pulse all around it breaking all electric based machinery. The bottom looks like refillable battery, so you can use it more than 1 time? The form allow you to pack multiple of these in a small container like pockets or on body bags. The big question is - when you use 1 and be in the range of blast, would all other still work after it?
3. I like what i see. The whole concept. A weapon that can be used everywhere and any time. A simple yet elegant grenade for a pesky terminator in a dark valley
So in stars:
I can see a vision in it, but its a little blurry, so 4/5 here.
Originality is something you really have here - first time seeing a EMP grenade with a pin for starters. But jokes aside, EMP is a concept that have a beard, yet its a good thing somebody can picture it still good after such a long time so 4/5.
Technique - flawless, what can i say, all lights are where they should be, reflections and shadows too. Feels like a lot of work, so no questions asked - 5/5.
Impact was made this day. Yes, i did poke this and that a little, but overall i like it, i really do. And after a brawl with some nasty robot, i just wish for one of these in the right moment in time. What can i say - 5/5.